feat(notifications): MEASUREMENT_REMINDER event type and client-managed gate

Register the MEASUREMENT_REMINDER event type (default on at the channel
layer; the real gate is the per-reminder enabled flag) and add the
notificationPrefs.measurementReminder.clientManaged sub-object plus its
cron-side resolver, mirroring the medication and cycle client-managed
precedent. The event rides the generic APNs category path and stays
non-time-sensitive, so it delivers as a plain banner with no client
change.

src/app/api/auth/me/notification-prefs/__tests__/route.test.ts

@@ -103,6 +103,9 @@ describe("GET /api/auth/me/notification-prefs", () => {
         nudgeRoutine: true,
         nudgeFrequency: "weekly",
       },
+      measurementReminder: {
+        clientManaged: false,
+      },
     });
   });
 
@@ -135,6 +138,9 @@ describe("GET /api/auth/me/notification-prefs", () => {
         nudgeRoutine: true,
         nudgeFrequency: "weekly",
       },
+      measurementReminder: {
+        clientManaged: false,
+      },
     });
   });
 
@@ -169,6 +175,9 @@ describe("GET /api/auth/me/notification-prefs", () => {
         nudgeRoutine: true,
         nudgeFrequency: "weekly",
       },
+      measurementReminder: {
+        clientManaged: false,
+      },
     });
   });
 });
@@ -214,6 +223,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
         nudgeRoutine: true,
         nudgeFrequency: "weekly",
       },
+      measurementReminder: {
+        clientManaged: false,
+      },
     });
 
     expect(prisma.user.update).toHaveBeenCalledWith({
@@ -235,6 +247,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
             nudgeRoutine: true,
             nudgeFrequency: "weekly",
           },
+          measurementReminder: {
+            clientManaged: false,
+          },
         },
       },
     });
@@ -260,6 +275,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
               nudgeRoutine: true,
               nudgeFrequency: "weekly",
             },
+            measurementReminder: {
+              clientManaged: false,
+            },
           },
           next: {
             medication: {
@@ -277,6 +295,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
               nudgeRoutine: true,
               nudgeFrequency: "weekly",
             },
+            measurementReminder: {
+              clientManaged: false,
+            },
           },
           changed: ["medication"],
         }),
@@ -347,6 +368,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
             nudgeRoutine: true,
             nudgeFrequency: "weekly",
           },
+          measurementReminder: {
+            clientManaged: false,
+          },
         },
       },
     });
@@ -382,6 +406,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
         nudgeRoutine: true,
         nudgeFrequency: "weekly",
       },
+      measurementReminder: {
+        clientManaged: false,
+      },
     });
 
     expect(prisma.user.update).toHaveBeenCalledWith({
@@ -403,6 +430,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
             nudgeRoutine: true,
             nudgeFrequency: "weekly",
           },
+          measurementReminder: {
+            clientManaged: false,
+          },
         },
       },
     });
@@ -443,6 +473,9 @@ describe("PATCH /api/auth/me/notification-prefs", () => {
             nudgeRoutine: true,
             nudgeFrequency: "weekly",
           },
+          measurementReminder: {
+            clientManaged: false,
+          },
         },
       },
     });